QCS403
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QCS403
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QCS403

Designed specifically for smart assistants, small form factor smart speakers and audio-capable home hub applications with an integrated, advanced Voice UI.

The Qualcomm® QCS403 System-on-Chip (SoC) is designed to bring new capabilities and smart functionality to lower-tier smart speakers and smart assistants.

QCS403 is part of our Qualcomm® QCS400 series of dedicated audio SoCs based on our high performance, low-power architecture. This SoC is designed to significantly reduce overall BOM for feature rich, voice-supported home audio products at a lower consumer price point.

Qualcomm QCS403 is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.

Product license agreement
Featured DocumentsProduct Brief
Benefits
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Improved low-power performance

Supports new levels of performance for portable and battery-powered smart speakers compared to our previous SoCs. Helps reduce standby current requirements for mains-connected speakers or smart assistants.

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Industry-leading integration

Unique, highly-integrated yet flexible single-chip architecture designed to deliver substantial power efficiencies, performance improvements and opportunities for advanced feature innovation, as well as helping audio manufacturers to reduce BOM.

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Ultimate audio experiences

Truly superior audio performance, with support for Qualcomm® DDFA™ amplifier technology, and Qualcomm® aptX™ audio.

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Dedicated DSP

Dedicated high-performance audio DSP with hardware enhancement capable of up to 12 channels of audio post processing. Dual DSP cores support high performance and low-power keyword detection.

Features

  • Highly-integrated architecture, with a dual-core CPU, dual DSP, Wi-Fi, Bluetooth, and powerful audio features on a single chip
  • Industry-leading connectivity with low-latency streaming and advanced Wi-Fi, Bluetooth, and Zigbee coexistence technology
  • Superior audio performance, compatible with DDFA amplifier technology and aptX audio
  • High performance, low-power keyword detection pre-loaded and running on an integrated DSP
  • Configurable multi-keyword detection with Local Automatic Speech Recognition designed for customizable user experiences
  • Includes low power far-field keyword detection, multi-mic beamforming noise suppression with mono, stereo, and multichannel echo cancellation
  • Industry-leading far field voice capture technology, with simultaneous multi key word detection
  • Support for up to 12 channel audio output
  • Help reduce product development time and cost, with our Audio Development Kit (ADK), and Software Evaluation Kit, as well as hardware reference designs
Specifications
Qualcomm® Artificial Intelligence (AI) Engine
CPU Number of Cores
2
Qualcomm® Hexagon™ Processor Name
2x Qualcomm® Hexagon™
LR-WPAN
Protocol
Zigbee
CPU
Clock Speed
Up to 1.4 GHz
DSP
Compute
V66 800 MHz with low power island, V66 700 MHz with Qualcomm® AI Engine
Wi-Fi
Generation
Wi-Fi 6 (ready), Wi-Fi 5
Standards
802.11ac, 802.11ax (ready)
MIMO Configuration
4x4, 2x2, 1x1
Spatial Streams
Up to 1, Up to 4, Up to 2

Qualcomm Smart Audio Platform, Qualcomm QCS400, Qualcomm DDFA, Qualcomm AI Engine and Qualcomm aptX are products of Qualcomm Technologies, Inc. and/or its subsidiaries.

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4 of 4 total products

Product

Qualcomm® Artificial Intelligence (AI) Engine

GPU Name

CPU Number of Cores

Qualcomm® Hexagon™ Processor Name

LR-WPAN

Protocol

CPU

Clock Speed

DSP

Compute

Wi-Fi

Standards

Bluetooth

Specification Version

Audio

Audio Capturing Technologies

Voice Services

Voice UI

Software Options

Operating System

IoT

Voice and Music Applications

Other

QCS404

—

4

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ac
802.11ax (ready)

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

Low-power standby with voice wakeup
4-microphone far-field voice pickup noise cancellation

Linux

Smart Speakers

QCS405
Active

Qualcomm® Adreno™ 306

4

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ax (ready)
802.11ac

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

4-microphone far-field voice pickup noise cancellation
Low-power standby with voice wakeup

Linux

Smart Speakers
Soundbars & Home Theater

QCS403

—

2

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ac
802.11ax (ready)

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

Low-power standby with voice wakeup
4-microphone far-field voice pickup noise cancellation

Linux

Smart Assistant
Smart Speakers

QCS407

Qualcomm® Adreno™ 306

4

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ax (ready)
802.11ac

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

4-microphone far-field voice pickup noise cancellation
Low-power standby with voice wakeup

Linux

AVR

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